Polycarbonate-based hybrid ternary blend with regulated silica dispersion and distribution towards high environmental stress crack resistance, high strength and high toughness

Zhang, Xuhui; Li, Chongyang; Xu, Haoyu; He, Yongbin; Li, Ting; Huang, Jing; Wang, Shibo; Dong, Weifu

doi:10.1016/j.polymer.2023.126398

Polymer

2023

DOI: 10.1016/j.polymer.2023.126398

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Polycarbonate-based hybrid ternary blend with regulated silica dispersion and distribution towards high environmental stress crack resistance, high strength and high toughness

Xuhui Zhang,

Chongyang Li,

Haoyu Xu

et al.

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2024

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Cited by 3 publications

References 56 publications

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Enabling Design of Strong and Tough Poly(Propylene Carbonate) Through In Situ Generated Poly(Propylene Carbonate)‐Based Cross‐Linked Microdomains

Sang,

Zhang,

Huang

et al. 2024

Polymers for Advanced Techs

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The wide use of poly(propylene carbonate) (PPC), a biodegradable polymer made from carbon dioxide, will contribute greatly to alleviating environmental issues such as white pollution and greenhouse effect. However, the poor mechanical properties and low glass transition temperature (Tg) seriously limit the practical application of PPC. Traditional reinforcement methods for PPC will reduce the toughness sharply. Herein, we propose a new strategy for preparing strong and tough PPC through in situ generated high‐performance PPC‐based cross‐linked microdomains (PPC‐MD). Specifically, based on the aminolysis reaction between carbonate groups in PPC and multiple amine groups in polyethylenimine, PPC‐MD and hydroxy‐terminated PPC with low molecular weight (l‐PPC‐OH) are generated during melt blending. Then, hexamethylene diisocyanate is added to link l‐PPC‐OH for the purpose of eliminating the plasticization of l‐PPC‐OH and the degradation effect of terminal hydroxyl group. The PPC‐MD with high Tg can effectively reinforce PPC and improve its toughness. The PPC/PEI/HDI‐0.02/0.04 shows a high tensile strength of 29.4 ± 2.5 MPa and a toughness of 86.8 ± 5.2 MJ/m3, which is 2.58‐ and 1.38‐folds of PPC, respectively. Besides, the PPC‐MD can greatly improve the Tg of PPC as well. It is worth highlighting that this method can be accomplished by melt blending, which is facile and can be scaled up. We envision that this work will enrich the modification method of PPC and promote the practical application of PPC as the as‐fabricated PPC shows integrated high strength, high toughness, and high Tg.

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Enabling Design of Strong and Tough Poly(Propylene Carbonate) Through In Situ Generated Poly(Propylene Carbonate)‐Based Cross‐Linked Microdomains

Sang,

Zhang,

Huang

et al. 2024

Polymers for Advanced Techs

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Improving the anti-environmental stress cracking performance of amorphous polymer through volume pulsation injection molding with semi-crystalline polymer

Zhang,

Liu

et al. 2024

Polymer

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Compatibilization of Poly(lactic acid)/Poly(propylene carbonate) blends by star-shaped multi-arm polymer with low molecular weight

Zhang,

Li,

et al. 2024

Polymer

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Polycarbonate-based hybrid ternary blend with regulated silica dispersion and distribution towards high environmental stress crack resistance, high strength and high toughness

Cited by 3 publications

References 56 publications

Enabling Design of Strong and Tough Poly(Propylene Carbonate) Through In Situ Generated Poly(Propylene Carbonate)‐Based Cross‐Linked Microdomains

Enabling Design of Strong and Tough Poly(Propylene Carbonate) Through In Situ Generated Poly(Propylene Carbonate)‐Based Cross‐Linked Microdomains

Improving the anti-environmental stress cracking performance of amorphous polymer through volume pulsation injection molding with semi-crystalline polymer

Compatibilization of Poly(lactic acid)/Poly(propylene carbonate) blends by star-shaped multi-arm polymer with low molecular weight

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